> ## Documentation Index
> Fetch the complete documentation index at: https://docs.optimism.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Proposer Configuration

> Learn the OP Stack proposer configurations.

This page lists all configuration options for op-proposer. The op-proposer posts
output roots (proposals) to L1, making them available for verifiers. Withdrawals to L1 must reference an output root.
If the chain is running permissioned fault proofs, only the [designated proposer](/op-stack/protocol/privileged-roles) can submit output roots.
With [permissionless fault proofs](/op-stack/fault-proofs/explainer), anyone can make a proposal.

## Proposer policy

The proposer policy defines high-level constraints and responsibilities regarding how L2 output roots are posted to L1. Below are the [standard guidelines](/chain-operators/reference/standard-configuration) for configuring the proposer within the OP Stack.

| Parameter        | Description                                                                         | Administrator  | Requirement                                                | Notes                                                           |
| ---------------- | ----------------------------------------------------------------------------------- | -------------- | ---------------------------------------------------------- | --------------------------------------------------------------- |
| Output Frequency | Defines how frequently L2 output roots are submitted to L1 (via the output oracle). | L1 Proxy Admin | **43,200 L2 blocks** (24 hours at 2s block times) or lower | It cannot be set to 0 (there must be some cadence for outputs). |

### Example configuration

```
OP_PROPOSER_L1_ETH_RPC: YOUR_L1_RPC_URL_HERE
OP_PROPOSER_ROLLUP_RPC: YOUR_CHAINS_RPC_URL_HERE
OP_PROPOSER_GAME_FACTORY_ADDRESS: YOUR_CHAINS_GAME_FACTORY_ADDRESS_HERE
OP_PROPOSER_PROPOSAL_INTERVAL: 5h
OP_PROPOSER_WAIT_NODE_SYNC: true
OP_PROPOSER_ALLOW_NON_FINALIZED: "false"
OP_PROPOSER_POLL_INTERVAL: "20s"
OP_PROPOSER_NUM_CONFIRMATIONS: "1"
OP_PROPOSER_SAFE_ABORT_NONCE_TOO_LOW_COUNT: "3"
OP_PROPOSER_RESUBMISSION_TIMEOUT: "30s"
OP_PROPOSER_METRICS_ENABLED: "true"
OP_PROPOSER_METRICS_ADDR: 0.0.0.0
OP_PROPOSER_METRICS_PORT: 7300
```

Higher throughput chains can decrease the `proposal-interval` to allow users submit withdrawals more often.

## All configuration variables

### Output root generation

#### poll-interval

Delay between periodic checks on whether it is time to load an output root and propose it. The default value is 6s.

<Tabs>
  <Tab title="Syntax">`--poll-interval=<value>`</Tab>
  <Tab title="Example">`--poll-interval=6s`</Tab>
  <Tab title="Environment Variable">`OP_PROPOSER_POLL_INTERVAL=6s`</Tab>
</Tabs>

#### active-sequencer-check-duration

The duration between checks to determine the active sequencer endpoint from which output roots will be derived. The
default value is `2m0s`.

<Tabs>
  <Tab title="Syntax">`--active-sequencer-check-duration=<value>`</Tab>
  <Tab title="Example">`--active-sequencer-check-duration=2m0s`</Tab>
  <Tab title="Environment Variable">`OP_PROPOSER_ACTIVE_SEQUENCER_CHECK_DURATION=2m0s`</Tab>
</Tabs>

### Output root submission

#### proposal-interval

Interval between submitting L2 output proposals when the dispute game factory
address is set. The default value is 0s.

<Tabs>
  <Tab title="Syntax">`--proposal-interval=<value>`</Tab>
  <Tab title="Example">`--proposal-interval=0s`</Tab>
  <Tab title="Environment Variable">`OP_PROPOSER_PROPOSAL_INTERVAL=0s`</Tab>
</Tabs>

#### allow-non-finalized

Allow the proposer to submit proposals for L2 blocks from non-finalized L1
blocks. The default value is false.

<Tabs>
  <Tab title="Syntax">`--allow-non-finalized=<value>`</Tab>
  <Tab title="Example">`--allow-non-finalized=false`</Tab>
  <Tab title="Environment Variable">`OP_PROPOSER_ALLOW_NON_FINALIZED=false`</Tab>
</Tabs>

#### game-factory-address

Address of the DisputeGameFactory contract. This is where the proposer will submit output roots.

<Tabs>
  <Tab title="Syntax">`--game-factory-address=<value>`</Tab>
  <Tab title="Example">`--game-factory-address=<value>`</Tab>
  <Tab title="Environment Variable">`OP_PROPOSER_GAME_FACTORY_ADDRESS=<value>`</Tab>
</Tabs>

#### game-type

Dispute game type to create via the configured DisputeGameFactory. The default
value is 0.

<Tabs>
  <Tab title="Syntax">`--game-type=<value>`</Tab>
  <Tab title="Example">`--game-type=0`</Tab>
  <Tab title="Environment Variable">`OP_PROPOSER_GAME_TYPE=0`</Tab>
</Tabs>

### Proposer startup

#### wait-node-sync

Indicates if, during startup, the proposer should wait for the rollup node to
sync to the current L1 tip before proceeding with its driver loop. The default
value is false.

<Tabs>
  <Tab title="Syntax">`--wait-node-sync=<value>`</Tab>
  <Tab title="Example">`--wait-node-sync=false`</Tab>
  <Tab title="Environment Variable">`OP_PROPOSER_WAIT_NODE_SYNC=false`</Tab>
</Tabs>

### Transaction manager

#### fee-limit-multiplier

The multiplier applied to fee suggestions to limit fee increases. The default
value is 5.

<Tabs>
  <Tab title="Syntax">`--fee-limit-multiplier=<value>`</Tab>
  <Tab title="Example">`--fee-limit-multiplier=5`</Tab>
  <Tab title="Environment Variable">`OP_PROPOSER_TXMGR_FEE_LIMIT_MULTIPLIER=5`</Tab>
</Tabs>

#### num-confirmations

Number of confirmations to wait after sending a transaction. The default value
is 10.

<Tabs>
  <Tab title="Syntax">`--num-confirmations=<value>`</Tab>
  <Tab title="Example">`--num-confirmations=10`</Tab>
  <Tab title="Environment Variable">`OP_PROPOSER_NUM_CONFIRMATIONS=10`</Tab>
</Tabs>

#### resubmission-timeout

Duration we will wait before resubmitting a transaction to L1. The default
value is 48s.

<Tabs>
  <Tab title="Syntax">`--resubmission-timeout=<value>`</Tab>
  <Tab title="Example">`--resubmission-timeout=48s`</Tab>
  <Tab title="Environment Variable">`OP_PROPOSER_RESUBMISSION_TIMEOUT=48s`</Tab>
</Tabs>

#### safe-abort-nonce-too-low-count

Number of ErrNonceTooLow observations required to give up on a tx at a
particular nonce without receiving confirmation. The default value is 3.

<Tabs>
  <Tab title="Syntax">`--safe-abort-nonce-too-low-count=<value>`</Tab>
  <Tab title="Example">`--safe-abort-nonce-too-low-count=3`</Tab>
  <Tab title="Environment Variable">`OP_PROPOSER_SAFE_ABORT_NONCE_TOO_LOW_COUNT=3`</Tab>
</Tabs>

#### txmgr.fee-limit-threshold

The minimum threshold (in GWei) at which fee bumping starts to be capped. The
default value is 100.

<Tabs items={['Syntax', 'Example', 'Environment Variable']}>
  <Tab title="Syntax">`--txmgr.fee-limit-threshold=<value>`</Tab>
  <Tab title="Example">`--txmgr.fee-limit-threshold=100`</Tab>
  <Tab title="Environment Variable">`OP_PROPOSER_TXMGR_FEE_LIMIT_THRESHOLD=100`</Tab>
</Tabs>

#### txmgr.min-basefee

Enforces a minimum base fee (in GWei) to assume when determining tx fees. The
default value is 1.

<Tabs>
  <Tab title="Syntax">`--txmgr.min-basefee=<value>`</Tab>
  <Tab title="Example">`--txmgr.min-basefee=1`</Tab>
  <Tab title="Environment Variable">`OP_PROPOSER_TXMGR_MIN_BASEFEE=1`</Tab>
</Tabs>

#### txmgr.min-tip-cap

Enforces a minimum tip cap (in GWei) to use when determining tx fees. The
default value is 1.

<Tabs>
  <Tab title="Syntax">`--txmgr.min-tip-cap=<value>`</Tab>
  <Tab title="Example">`--txmgr.min-tip-cap=1`</Tab>
  <Tab title="Environment Variable">`OP_PROPOSER_TXMGR_MIN_TIP_CAP=1`</Tab>
</Tabs>

#### txmgr.not-in-mempool-timeout

Timeout for aborting a tx send if the tx does not make it to the mempool. The
default value is 2m0s.

<Tabs>
  <Tab title="Syntax">`--txmgr.not-in-mempool-timeout=<value>`</Tab>
  <Tab title="Example">`--txmgr.not-in-mempool-timeout=2m0s`</Tab>
  <Tab title="Environment Variable">`OP_PROPOSER_TXMGR_TX_NOT_IN_MEMPOOL_TIMEOUT=2m0s`</Tab>
</Tabs>

#### txmgr.receipt-query-interval

Frequency to poll for receipts. The default value is 12s.

<Tabs>
  <Tab title="Syntax">`--txmgr.receipt-query-interval=<value>`</Tab>
  <Tab title="Example">`--txmgr.receipt-query-interval=12s`</Tab>
  <Tab title="Environment Variable">`OP_PROPOSER_TXMGR_RECEIPT_QUERY_INTERVAL=12s`</Tab>
</Tabs>

#### txmgr.send-timeout

Timeout for sending transactions. If 0 it is disabled. The default value is 0s.

<Tabs>
  <Tab title="Syntax">`--txmgr.send-timeout=<value>`</Tab>
  <Tab title="Example">`--txmgr.send-timeout=0s`</Tab>
  <Tab title="Environment Variable">`OP_PROPOSER_TXMGR_TX_SEND_TIMEOUT=0s`</Tab>
</Tabs>

### Wallet

#### hd-path

The HD path used to derive the sequencer wallet from the mnemonic.

<Tabs items={['Syntax', 'Example', 'Environment Variable']}>
  <Tab>`--hd-path=<value>`</Tab>
  <Tab>`--hd-path=<value>`</Tab>
  <Tab>`OP_PROPOSER_HD_PATH=<value>`</Tab>
</Tabs>

#### mnemonic

The mnemonic used to derive the wallets for the service.

<Tabs>
  <Tab title="Syntax">`--mnemonic=<value>`</Tab>
  <Tab title="Example">`--mnemonic=<value>`</Tab>
  <Tab title="Environment Variable">`OP_PROPOSER_MNEMONIC=<value>`</Tab>
</Tabs>

### RPC

#### l1-eth-rpc

HTTP provider URL for L1.

<Tabs>
  <Tab title="Syntax">`--l1-eth-rpc=<value>`</Tab>
  <Tab title="Example">`--l1-eth-rpc=<value>`</Tab>
  <Tab title="Environment Variable">`OP_PROPOSER_L1_ETH_RPC=<value>`</Tab>
</Tabs>

#### rollup-rpc

HTTP provider URL for the rollup node. A comma-separated list enables the
active rollup provider.

<Tabs>
  <Tab title="Syntax">`--rollup-rpc=<value>`</Tab>
  <Tab title="Example">`--rollup-rpc=<value>`</Tab>
  <Tab title="Environment Variable">`OP_PROPOSER_ROLLUP_RPC=<value>`</Tab>
</Tabs>

#### rpc.addr

rpc listening address. The default value is "0.0.0.0".

<Tabs>
  <Tab title="Syntax">`--rpc.addr=<value>`</Tab>
  <Tab title="Example">`--rpc.addr=0.0.0.0`</Tab>
  <Tab title="Environment Variable">`OP_PROPOSER_RPC_ADDR=0.0.0.0`</Tab>
</Tabs>

#### rpc.enable-admin

Enable the admin API. The default value is false.

<Tabs>
  <Tab title="Syntax">`--rpc.enable-admin=<value>`</Tab>
  <Tab title="Example">`--rpc.enable-admin=false`</Tab>
  <Tab title="Environment Variable">`OP_PROPOSER_RPC_ENABLE_ADMIN=false`</Tab>
</Tabs>

#### rpc.port

rpc listening port. The default value is 8545.

<Tabs>
  <Tab title="Syntax">`--rpc.port=<value>`</Tab>
  <Tab title="Example">`--rpc.port=8545`</Tab>
  <Tab title="Environment Variable">`OP_PROPOSER_RPC_PORT=8545`</Tab>
</Tabs>

### Logging

#### log.color

Color the log output if in terminal mode. The default value is false.

<Tabs>
  <Tab title="Syntax">`--log.color=<value>`</Tab>
  <Tab title="Example">`--log.color=false`</Tab>
  <Tab title="Environment Variable">`OP_PROPOSER_LOG_COLOR=false`</Tab>
</Tabs>

#### log.format

Format the log output. Supported formats: 'text', 'terminal', 'logfmt', 'json',
'json-pretty'. The default value is text.

<Tabs>
  <Tab title="Syntax">`--log.format=<value>`</Tab>
  <Tab title="Example">`--log.format=text`</Tab>
  <Tab title="Environment Variable">`OP_PROPOSER_LOG_FORMAT=text`</Tab>
</Tabs>

#### log.level

The lowest log level that will be output. The default value is INFO.

<Tabs>
  <Tab title="Syntax">`--log.level=<value>`</Tab>
  <Tab title="Example">`--log.level=INFO`</Tab>
  <Tab title="Environment Variable">`OP_PROPOSER_LOG_LEVEL=INFO`</Tab>
</Tabs>

### Metrics

#### metrics.addr

Metrics listening address. The default value is "0.0.0.0".

<Tabs>
  <Tab title="Syntax">`--metrics.addr=<value>`</Tab>
  <Tab title="Example">`--metrics.addr=0.0.0.0`</Tab>
  <Tab title="Environment Variable">`OP_PROPOSER_METRICS_ADDR=0.0.0.0`</Tab>
</Tabs>

#### metrics.enabled

Enable the metrics server. The default value is false.

<Tabs>
  <Tab title="Syntax">`--metrics.enabled=<value>`</Tab>
  <Tab title="Example">`--metrics.enabled=false`</Tab>
  <Tab title="Environment Variable">`OP_PROPOSER_METRICS_ENABLED=false`</Tab>
</Tabs>

#### metrics.port

Metrics listening port. The default value is 7300.

<Tabs>
  <Tab title="Syntax">`--metrics.port=<value>`</Tab>
  <Tab title="Example">`--metrics.port=7300`</Tab>
  <Tab title="Environment Variable">`OP_PROPOSER_METRICS_PORT=7300`</Tab>
</Tabs>

### pprof

#### pprof.addr

pprof listening address. The default value is "0.0.0.0".

<Tabs>
  <Tab title="Syntax">`--pprof.addr=<value>`</Tab>
  <Tab title="Example">`--pprof.addr=0.0.0.0`</Tab>
  <Tab title="Environment Variable">`OP_PROPOSER_PPROF_ADDR=0.0.0.0`</Tab>
</Tabs>

#### pprof.enabled

Enable the pprof server. The default value is false.

<Tabs>
  <Tab title="Syntax">`--pprof.enabled=<value>`</Tab>
  <Tab title="Example">`--pprof.enabled=false`</Tab>
  <Tab title="Environment Variable">`OP_PROPOSER_PPROF_ENABLED=false`</Tab>
</Tabs>

#### pprof.path

The pprof file path. If it is a directory, the path is `{dir}/{profileType}.prof`

<Tabs>
  <Tab title="Syntax">`--pprof.path=<value>`</Tab>
  <Tab title="Example">`--pprof.path=<value>`</Tab>
  <Tab title="Environment Variable">`OP_PROPOSER_PPROF_PATH=<value>`</Tab>
</Tabs>

#### pprof.port

pprof listening port. The default value is 6060.

<Tabs>
  <Tab title="Syntax">`--pprof.port=<value>`</Tab>
  <Tab title="Example">`--pprof.port=6060`</Tab>
  <Tab title="Environment Variable">`OP_PROPOSER_PPROF_PORT=6060`</Tab>
</Tabs>

#### pprof.type

pprof profile type. One of cpu, heap, goroutine, threadcreate, block, mutex,
allocs

<Tabs>
  <Tab title="Syntax">`--pprof.type=<value>`</Tab>
  <Tab title="Example">`--pprof.type=<value>`</Tab>
  <Tab title="Environment Variable">`OP_PROPOSER_PPROF_TYPE=<value>`</Tab>
</Tabs>

### Signer

#### signer.address

Address the signer is signing transactions for.

<Tabs>
  <Tab title="Syntax">`--signer.address=<value>`</Tab>
  <Tab title="Example">`--signer.address=<value>`</Tab>
  <Tab title="Environment Variable">`OP_PROPOSER_SIGNER_ADDRESS=<value>`</Tab>
</Tabs>

#### signer.endpoint

Signer endpoint the client will connect to.

<Tabs>
  <Tab title="Syntax">`--signer.endpoint=<value>`</Tab>
  <Tab title="Example">`--signer.endpoint=<value>`</Tab>
  <Tab title="Environment Variable">`OP_PROPOSER_SIGNER_ENDPOINT=<value>`</Tab>
</Tabs>

#### signer.tls.ca

tls ca cert path. The default value is "tls/ca.crt".

<Tabs>
  <Tab title="Syntax">`--signer.tls.ca=<value>`</Tab>
  <Tab title="Example">`--signer.tls.ca=tls/ca.crt`</Tab>
  <Tab title="Environment Variable">`OP_PROPOSER_SIGNER_TLS_CA=tls/ca.crt`</Tab>
</Tabs>

#### signer.tls.cert

tls cert path. The default value is "tls/tls.crt".

<Tabs>
  <Tab title="Syntax">`--signer.tls.cert=<value>`</Tab>
  <Tab title="Example">`--signer.tls.cert=tls/tls.crt`</Tab>
  <Tab title="Environment Variable">`OP_PROPOSER_SIGNER_TLS_CERT=tls/tls.crt`</Tab>
</Tabs>

#### signer.tls.key

tls key. The default value is "tls/tls.key".

<Tabs>
  <Tab title="Syntax">`--signer.tls.key=<value>`</Tab>
  <Tab title="Example">`--signer.tls.key=tls/tls.key`</Tab>
  <Tab title="Environment Variable">`OP_PROPOSER_SIGNER_TLS_KEY=tls/tls.key`</Tab>
</Tabs>

### Miscellaneous

#### network-timeout

Timeout for all network operations. The default value is 10s.

<Tabs>
  <Tab title="Syntax">`--network-timeout=<value>`</Tab>
  <Tab title="Example">`--network-timeout=10s`</Tab>
  <Tab title="Environment Variable">`OP_PROPOSER_NETWORK_TIMEOUT=10s`</Tab>
</Tabs>

#### help

Show help. The default value is false.

<Tabs>
  <Tab title="Syntax">`--help=<value>`</Tab>
  <Tab title="Example">`--help=false`</Tab>
</Tabs>

#### version

Print the version. The default value is false.

<Tabs items={['Syntax', 'Example', 'Environment Variable']}>
  <Tab>`--version=<value>`</Tab>
  <Tab>`--version=false`</Tab>
</Tabs>